if someone is interested we have updated our RC Joystick NG^2 project that now support also PCM input for some radio: Sanwa / Airtronics PCM1 and 2. We are also working on Futaba PCM 1024 and JR/Graupner... help needed here: we have not such radios so if someone could send us PCM soundcard recordings of Futaba or JR Graupner for testing/debugging.....
project homepage: http://alessioandrea.altervista.org/rcjoyng2.html
alessio e andrea